Means for interlocking car truck parts



June 1932- J. s. M PHEIRSON MEANS FOR INTERLOCKING CAR TRUCK PARTS Filed May 29, 1930 2 Sheets-Sheet gwmntoc June 14,, 1932. r J 5, MCPHERSbN 1,862,966

mums FOR INTERIJOCKING cm TRUCK PARTS Fi ed May 29, 1930 2 Sheets-Sheet 2 Patented June 14, 1932 UNITED STATES PATENT OFFICE JOHN S. MCPHERSON, OI COLUMBUS, OHIO, ASSIGNOR T0 THE BUcKEYE STEEL CASTINGS COMPANY, OF COLUMBUS, OHIO MEANS FOR INTERLOCKING GAR TRUCK PARTS Application filed May 29,

This invention relates to improved means for interlocking the spring plank and spring seat of a railway car truck to the spring seatportion of the tension member of a side frame, and the present invention was designed primarily to eliminate the use of bolted connections. Such connect-ions are undesirable because the bolts are liable to become loose or lost, and otherwise not make a positive means of retaining the spring seat member against horir'ontal displacement on the spring plank.

One of the objects of the present invention is to provide interlocking means for these the spring seat from any horizontal displacement relatively to the tension portion of the side frame and the spring plank, and which yet allows these parts to be disassembled by relative vertical movements.

With the foregoing objects outlined and with other objects in view which will. appear as the description proceeds, the invention consists in the novel features hereinafter described in detail, illustrated in the accompanying drawings, and more particularly pointed out in the appended claims.

Referring to the drawings,

Fig. 1 is an elevation of the lower portion of the tension member of a side frame, showing apart of the interlocking means.

Fig. 2 is a combined plan view of the medial portion of the side frame. the parts at the left of the line 33 being shown in top plan, and the parts at the right in bottom plan.

Fig. 3 is a vertical sectional view of such a side frame on the line 33 of Fig. 2. v

Fig. 4 is a view similar to Fig. 3, but showing the side frame in assembled relation with the spring plank, spring seat, bolster and which an end of the bolster 2 projects.

1930. Serial No. 457,326.

springs, portions only of the spring plank and bolster being shown in this View, and the springs being diagrammatically illustrated.

Fig. 5 is a top plan view of the spring seat.

' Fig. 6 is a side elevation of the spring seat. Fig. 7 is a front elevation of the same.

In the drawings, 1 designates a side frame having the usual bolster opening 1a, into This end of the bolster rests on springs 3 which are supported by a spring seat 4 that rests upon a spring plank 4a which also projects into the bolster opening.

In accordance Withthe present invention, the tension member 16 of the side frame has projecting upwardly from its medial portion, an annular boss 5, to extend through an aperture 5a, positioned in the bottom of the spring plank, for the purpose of interlocking the spring plank with said tension member.

Heretofore, proposals have been made to interlock the tension member to the spring plank by similar means, but in accordance with my invention, the boss 5 is extended upwardly to an elevation above the upper surface of the bottom of the spring plank, and this projecting portion of the boss is provided with four notches 8 to interlock with depending ribs 9 and 10, arranged in the under side of the spring seat 7.

As best shown in Fig. 5, the ribs 9 and 10 are arranged in cruci-form relation, and of course, the notches 8 of the boss are positioned at 90 degrees relatively to one another to accommodate the arrangement of the ribs.

After the spring plank has been placed on the tension member of the side frame in such manner that the boss 5 projects through the opening 5a, and the spring seat 7 has been superposed on the spring plank in such manner that the ribs 9 and 10 engage the notches 8, it will be understood that the pressure of the bolster 2 on the springs 3 will cause the spring seat, spring plank and tension member of the side frame to maintain their assembled relation, and there Will be no horizontal displacement of these parts relatively to each other Obviously, the parts may be disassembled by lifting the spring seat 7 away from the spring plank, and the spring plank away from the tension member of the side frame.

This particular arrangement has been designed to replace arch bar frames on railways, and manifestly, this interlocking arrangement may be employed wherever it is desired to interlock the side frame, spring plank and spring seat to one another.

From the above description it is believed that the construction, operation and advantages of the invention may be readily understood, and it is obvious that changes may be made in the details disclosed, without departing from the spirit of the invention, as expressed in the claims.

What is claimed and described to be secured by Letters Patent is:

1. In combination, a car truck side frame member, a spring plank resting thereon, a spring seat member resting on the spring plank, and means rigidly united with one of said members, projecting through the spring plank and interlocking with the other one of said members by a notch and rib connection.

2. In combination, a car truck side frame member, a spring plank resting thereon, a spring seat member resting on the spring plank, and means rigidly united with one of said members, projecting through the spring plank and interlocking with the other one of said members by a notch and rib connection, said means including an annular boss.

3. In combination, a car truck side frame member, a spring plank resting thereon, a spring seat member resting on the spring plank, and means rigidly united with one of said members, projecting through the sprin plank and interlocking with the other one 0 said members by a notch and rib connection,

7 said means including an annular boss provided with a notched extension.

4. In combination, a car truck side frame member, a spring plank resting thereon, a spring seat member resting on the spring plank, and means rigidly united with one of said members, projecting through the spring plank and interlocking with the other one of said members, said means including a boss, and ribs on one of said members interlocking with said boss.

5. In combination, a car truck side frame member, a spring plank resting thereon, a spring seat member resting on the spring plank, and means rigidly united with one of said members, projecting through the spring plank and interlocking with the other one of said members, said means including a boss having notches, the last mentioned member having ribs projecting into said notches.

6. In combination, a car truck side frame member, a spring plank resting on said member, a spring sea-t member resting on said plank, interlocking means extending through the plank and including a notched element rigidly united with one of the members, and ribs rigidly united with the other member and engaging said notches.

7. In combination, a car truck side frame having a tension member provided with an upwardly projecting boss portion, a spring plank resting on said tension member and having an aperture through which the boss portion extends, a spring seat resting on the plank and having an interlocking portion, one of said portions being provided with ribs and the other portion being notched to receive said ribs.

8. In a car truck, a side frame tension member provided with an upwardly extending boss provided with notches in the top thereof,

a spring plank resting on said tension mem-- beer and having an aperture through which the boss extends, and a spring seat resting on the spring plank and having ribs on its under side extending into said notches.

9. A car truck including a side frame tension member provided with an upwardly extending annular boss having notches in the top thereof, a spring plank resting on said tension member and having an aperture through which the boss projects, and a spring seat resting on said plank and provided on its under side with cruci-form arranged ribs which project into said notches.

.0. A car truck side frame having a tension member provided with an upwardly extending substantially circular boss having substantially radial notches in its upper edge, and a spring plank and superposed spring seat resting on said tension member and interlocked with the boss, the spring seat having portions extending into the notches for also interlocking the spring seat with the boss.

11. A car truck side frame having a tension member provided with an upwardly extending boss having notches in its top, and a spring plank and superposed spring seat resting on said tension member and interlocked with the boss, the spring seat having portions extending into the notches for also 1nterlocking the spring seat with the boss.

In testimony whereof, I have signed this specification.

JOHN S. MoPHERSON. 

